package com.test.rpc.protocol;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

import java.lang.reflect.Method;
import java.util.Arrays;

@Data
@AllArgsConstructor
@NoArgsConstructor
public class ServiceDescriptor {
    private String clazz;
    private String method;
    private String returnType;
    private String [] parameterType;
    public static ServiceDescriptor from(Class clazz, Method method){
        ServiceDescriptor sdp = new ServiceDescriptor();
        sdp.setClazz(clazz.getName());
        sdp.setMethod(method.getName());
        sdp.setReturnType(method.getReturnType().getName());

        Class[] parameterClasses = method.getParameterTypes();
        String[] parameterTypes = new String[parameterClasses.length];

        for(int i=0; i< parameterClasses.length; i++){
            parameterTypes[i] = parameterClasses[i].getName();
        }

        return sdp;
    }
    @Override
    public int hashCode() {
        return toString().hashCode();
    }

    @Override
    public boolean equals(Object obj) {
        if(this==obj)return true;
        else if(obj==null || getClass()!= obj.getClass()) return false;

        ServiceDescriptor that = (ServiceDescriptor)obj;
        return this.toString().equals(that.toString());
    }

    @Override
    public String toString() {
        return "clazz="+clazz+
                ",method="+method+
                ",returnType="+returnType+
                ",parameterTypes="+ Arrays.toString(parameterType);
    }

}
